Bryan Cranston joins 'Power Rangers' as floating head mentor Zordon

Bryan Cranston has signed on with the Lionsgate "Power Rangers" reboot, the "Breaking Bad" actor said Tuesday on Twitter.

Cranston joins the cast as Zordon, the disembodied holographic head in a tube that trains, leads and advises the group of teen superheroes. The rebooted Rangers themselves have a starkly different look, but there's no word yet on whether Cranston's Zordon will be a big departure from the classic TV show.